WASHINGTON – MSNBC’s “pimp” flap got nastier yesterday as bloggers dug up a clip of one of the cable network’s top talking heads using the prostitution analogy on-air last year.

But Keith Olbermann, the network’s chief left-wing Doberman, didn’t suffer the same fate as suspended correspondent David Shuster when he accused President Bush last September of “pimping” the commander of US forces in Iraq.

“In pimping General David Petraeus and in the violation of everything this country has been assiduously and vigilantly against for 220 years, you have tried to blur the gleaming radioactive demarcation between the military and the political,” Olbermann said in a Sept. 20, 2007, rant entitled “Your Hypocrisy is So Vast.”

On Friday, the cable network suspended Shuster after Hillary Rodham Clinton’s campaign complained that he said Chelsea was being “pimped out” by the campaign.